A ring 950/1000 platinum set with 6 brilliant-cut diamonds weighing approximately 0.10 ct. and the central one in brilliant cut with an approximate weight of 3.20 ct., colour grade N~O, purity VS1 and medium fluorescence Portuguese restoration Lisbon mark (1985-2020) Dimensões (altura x comprimento x largura) - 14 (17 mm) cm; Peso - 4 g. Notes: vd. VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Marcas de Contrastes e Ourives Portugueses (1887 a 1993)", vol. II. Lisbon: IN-CM, 1996, Nos. 4101.